willson



2 Sheets-*Sheet 1.

H. F. WILLSON.

Sewing Machine.

No. 62.986. 'Patented March 19, 1867.

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PETERS FHOTULITHOGRAFHER. WASHXNGTDN. D. C.

v2 SheefsL-Sheet 2. H. WLLSON.

Sewing Machine.

No. 62,986. Patented March 19, 1867.

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MPETERS. FNOTmUTHoGRAPHgR. WASHINGWN n c .Quitte .taten @anni @Hita HENRY E. WILLsov, or roar WAYNE, morfina, AssiGNon To w. e..

WILSON, 0E CLEVELAND, onio.

Letters Patent No. 62,986, dated I'vfarct 19, 18.67.' a/JJAA /5 IMPROVEMENT IN SEWING MACHINES.

TO ALL WHOM IT MAY CON CERN:A

Be it known that I, HENRY F. WILLSON, of FortWVayne, in the county of Allen, and State of ndiana, have invented certain new and -useful Improvements in Sewing Machines; and l do hereby declare that the following is a full, clear, and exact description thereof, reference being had to lthe accompanying drawings, and to the letters of reference marked thereon, in which-fM Figure 1 is a. front elevation.

Figure 2 is a side elevation.

Figure 3 is a detached plan view.

Figure 4 is an edge view of shuttle.

Figure 5 is a side view of shuttle.

Figure y6 isa top `view ofy shuttle. r

Figures 7, 8, 9, 10, and 11' are detached views of the shuttle holder.

Figure 12 is a detached view of the cccentrics.

The nature of my invention consists in combining thev needle-har ot' sewing machines having an oscillating needle-feed motion with an oscillating lever and stationary shuttle, for the purposes of- 1. Se governing and controlling the action of the needle, that when it has pierced the cloth to its full length, and has, by its vibration, passed its point to the point oi" the shuttle, and lhas been partially withdrawn from the cloth to forni a loop, the clotlrhas not been moved, but has remained stationary. i

2. Se governing the fced'that stitches of any desired length may be spaced on" in an even, uniform man ner, Without at the same time interfering with the looping of the thread and the catching the same by the point of the shuttle. u l l 3. Enabling the needle to have a long throw and great vibration, to allow it to eastthe loop over the point ot' the shuttle and not interfere with the length of the stitch.

To enable others skilled in the arts to make and use my invention, I will proceed to describe its construction and operation. v

A represents the fra-ine of the machine. B represents an: axle, which runs horizontally through the machine and imparts motion to it. C represents a crank-wheel, which is secured to the end ofaxle B, and is provided with a crank-pin, D.; E E are irregular eeeentrics, which are secured to the axle B, and are located directly behind the crank-wheel; eccentric E governs the motion of' the needle, while E governs the length of stitch. F represents a needle-bar, which is secured near its centre to crank-pin D so as to move freely. The lower end of said needle-bar vextends downward through an oscillating tube Gr. Said tube is secured by a pivot to the lower end of an oscillating lever, H, which lever H is pivoted on a stationary fulcrum, I. Its upper end is curved outward and upward so as to extend above the centre of axle B, and comes in immediate contact with the eccentrics E E. J represents a thumb-screw, which passes through the upper end of lever H, and is acted upon by projection K of eccentricV E. Said lever is kept in position by means of a spring, L. M represents a cloth-presser. .N represents a plate for support of cloth to be -sewed, having a suitable slot for the passage of needle, thread, &c. O represents a shuttle, which is made in the form seen in the drawings, (figs.

1, 2, 3, 4, 5, and 6.) i The` shuttle used in this machine maybe eistrueted with an open end, to admit the spool loosely, or the end may be closed by means ot' a head, having a suitable screw for the purpose of securing it in place, and is supported in a shuttle holder constructed as follows: a represents a plate, having a ledge, b, which extends diagonally across it, on which the shuttle rests, and also another ledge, c, which. extends vertically across it, and against which the back of the shuttle issupported. This plate is also provided with a recess,l

into which the needle passes, and is formed as seen in the drawings. (See iigs. 10, 11.) In the lower portion of this recess isv api-ejection, d, on which the point'oi the shuttle restsfor support. Directly in front of the point of the shuttle, and a short distance from it,l is located another projection, c, against which the shuttle is forced while the threadis passing over the saine. g represents an elliptic spring, which press-es slightly against the back of theshuttle, to keep it in place. 7 1. represents another elliptic spring, which presses against the inner side of' the shuttle and serves to hold it against theledge against which the hack oi" 4the shuttle rests.

j It' the fulerum of the needle-bar were stationary, as inl Boyntons and Catclys machines, while the crankpin supporting the necdle-barwas passingf through the 4lower part of its nether Asemi-revolution by a lateral movement, that part of the needle immediately in contact with'the cloth would, in common with the other parts of the nce-.ile below the fulcrum, receive a lateral movement in the opposite direction. 1Alateral movement ofv that part of the needle immediately in contact with the cloth I desire to prevent, and I carry out this desire by making the fulcrum-pin of the needle-bar a joint-pin, connecting the needl'egbar' holder with the lower end of the oscillating lever H, the upper end of which is held by a spring, L, against the eccentric E, and is thus compelled to follow the face of the eccentric over the retreating part-s thereof. The eccentric is so arranged as to presentthe retreating parts of its face to the upper arm of the lever Elfl during a part of the nether semirevolution of the crank-pin which supports the needle-bar, and the said upper arm is thus drawn toward the left, and the lower arm toward the right, at the time when the needle is passing down-through tl e cloth. This movement .of the lower arm of the lever H toward the right causes, of course, a similar movement of the fulcrum of the needle-bar; 'and as the fulcrum passes toward the right, it carries. with it that part of the needle in its immediate proximity. But as the cranlcpin withwhich.' the needle-bar is connected near its upper end mcvesconsiderably faster than the fulcrum toward thev right, itinevi'tablythrows the point of the needle toward the left. Between that part of the needle moving toward the right and that part moving toward the left there must be Va point that moves in neither direction, but is at rest. My mechanism is so adjusted that this point is that immediately surrounded by the cloth. The fulcrum of the needle is, in effect, fixed at this point during a portion of the revolution of the crank-piu. The point of the needle, however, receives motion enough to enable it to throw the loop over the point of the stationary shuttle,'and thus form the stitch. This compensat- .ingvibration of the fulcrum of the needle-bar, simultaneously with that of the needle-bar itself, I consider the chief feature of my invention. Just after the crank-pin has ceased its lateral motion toward the right, and the needle-bar commenced to rise, the projection K of the eccentric Ecomes in contact with the point of the set-screw J, passing through the upper arm of thelever H, and forces said upper arm toward the right. The lower arm of the lever consequently moves toward the left, carrying with it the needle not yet retracted from the cloth, and thus eiiecting the feed. The needle, on the completion of its retraction, is atl the limit of its throw to the left, and the extent of this throw depends upon the distance to which the `set-screw J is passed through the upper arm of' the lever H. The length of the stitch also depends `upon this circumstance, since the further the needle is thrown to the left, the greater. the distance it has to pass overto reach the limitoi` its throw to the right, which limit always lremains the same.

Having thus fully described' the construction and operation of my machine, what I claim as new, and desire to secure by Letters Patent, is`

l. A needle-bar, receiving an independent vibration from a crank, in combination with an oscillatinglever, and with a. vibrating needle-bar holder in .su-ch manner as to produce a compensating vibration of the needlebar, substantially as described. j

2. The sct-screw J, in combination with the eccentric E and oscillating lever H, for the purpose of affecting the length of the stitch by regulating the throw of the needle to the left, said lever being jointed to the with the' needle-bar and oscillating bar,for thc purposes described and sctrforth.

vibrating fulcrum of the needle-bar, as described. v l A 3. I claim the stationary shuttle, constructed and supported substantially as described, in combination H. F. WILLSON. [L Witnesses Y Gno. W. Jonas,- W. G. WILsoN.

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